摘要
本文依实际资料,讨论了中国东部北北西(北西)向构造系与地震活动的关系。其结论是:中国东部的地震活动主要是北北西(北西)向构造系,在北东东向压应力作用下,两组共轭剪切断裂分别发生右旋和左旋错动的结果。两者关系颇为密切。
The ralationship between the seismic activity and NNW(NW) tectonic system in the east part of China is discussed in respects of orientations, zonation, network-formation, migration and repetition of seismic activity according to the argument that the NNW(NW) tectonic system formed since the late cretaceous epoch-Terrify period. Therefore, it can be hold that the seismic activity in east part of China is as a result of right lateral and left lateral displacement caused respectively by two sets of conjugate shear fracture under the action of the NEE pressure stress. The relationship between the seismic activity and NNW(NW) tectonic system in eastpart of China is rather close.
出处
《地壳形变与地震》
CSCD
1992年第2期47-53,共7页
Crustal Deformation and Earthquake
关键词
地震
活动
构造系
中国
北西向
NNW (NW) tectonic system, orientations, zonation, network-formation, migration, repitaion.
